North America's highest peak, Mount McKinley, has shrunk by 83 feet according to new data acquired by US geographers.

The Alaskan mountain was last officially measured in 1952 and found to stand 20,320ft tall, but the new official figure means it now measures just 20,237ft. The measurement—recorded in 2012 but now published—was taken using Interferometric Synthetic Aperture Radar.

The change is either because of more accurate measurement technology or climate differences, according to the researchers. Sadly, your winter mountain climbing just got a little bit less impressive. [BBC]